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Long-Term Outcome of Chronic Thromboembolic Pulmonary Hypertension at a Single Japanese Pulmonary Endarterectomy Center.

Long-Term Outcome of Chronic Thromboembolic Pulmonary Hypertension at a Single Japanese Pulmonary Endarterectomy Center.
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Miwa H, Tanabe N, Jujo T, Kato F, Anazawa R, Yamamoto K, Naito A, Kasai H, Nishimura R, Suda R, Sugiura T, Sakao S, Ishida K, Masuda M, Tatsumi K,


Miwa H, Tanabe N, Jujo T, Kato F, Anazawa R, Yamamoto K, Naito A, Kasai H, Nishimura R, Suda R, Sugiura T, Sakao S, Ishida K, Masuda M, Tatsumi K, (click to view)

Miwa H, Tanabe N, Jujo T, Kato F, Anazawa R, Yamamoto K, Naito A, Kasai H, Nishimura R, Suda R, Sugiura T, Sakao S, Ishida K, Masuda M, Tatsumi K,

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Circulation journal : official journal of the Japanese Circulation Society 2018 03 13() doi 10.1253/circj.CJ-17-1242
Abstract
BACKGROUND
Several new treatments for chronic thromboembolic pulmonary hypertension (CTEPH) have appeared in recent years, which have led to changes in the treatment algorithm. Changes in survival rates and prognostic factors, however, have not been estimated so far.Methods and Results:Two hundred and eighty patients were diagnosed with CTEPH at Chiba University Hospital between June 1986 and June 2016. Survival rate was investigated by date of treatment initiation (group 1, 1986-1998; group 2, 1999-2008; group 3, 2009-2016). Survival rates were also evaluated by treatment strategy: balloon pulmonary angioplasty (BPA), pulmonary endarterectomy (PEA), and medical treatment. Group 3 had significantly better disease-specific survival than groups 1 and 2 (5-year survival: 91.9% vs. 67.1%, 77.0%, respectively). For the non-PEA (BPA+medication) strategy, group 3 had better disease-specific survival than groups 1 and 2 (5-year survival: 94.9% vs. 54.6%, 74.2%, respectively). The PEA strategy had significantly better survival than the medication strategy in groups 1 and 2, whereas no difference was observed between the BPA, PEA, and medication strategies in group 3.

CONCLUSIONS
Survival in CTEPH in the recent era has significantly improved, especially in non-PEA patients. BPA and selective pulmonary vasodilators could improve survival in the non-PEA group. In the present study, no difference in survival was found between PEA and non-PEA.

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